Carboxyl MWCNTs water dispersion (~2.0 wt%), ; ~2.0 wt% contentProduct Type: Carbon nanotube dispersion
Research-grade laboratory product
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LABORATORY PROCUREMENT SUPPORT
For model selection, material specification matching, application fit or quotation confirmation, contact our technical sales team.
E-MAIL: inquiry@atomfair.com
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Supplier: Atomfair
Brand: ATOMFAIR®
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
How does the carboxyl functionalization of MWCNTs in this water dispersion affect the balance between dispersion stability and electrical conductivity compared to non-functionalized MWCNTs?
The carboxyl groups introduce electrostatic repulsion and steric stabilization, significantly improving long-term dispersion stability in water. However, the functionalization process can create defect sites on the nanotube sidewalls, which may reduce the intrinsic electrical conductivity relative to pristine MWCNTs. This trade-off is critical for applications such as conductive coatings or electrodes where both uniform dispersion and high conductivity are required.
What are the compatibility limitations when integrating this aqueous carboxyl MWCNT dispersion into hydrophobic polymer matrices or organic solvent-based formulations?
This product is specifically a water-based dispersion, so direct incorporation into hydrophobic polymers or organic solvents (e.g., NMP, toluene) may cause phase separation or agglomeration. For non-aqueous systems, the water must be removed via solvent exchange or the dispersion must be stabilized with surfactants. The manufacturer's selection notes indicate that aqueous, NMP, oil-based, paste, and slurry forms can be matched to different workflows, but this specific product is supplied as a water dispersion.
Does the carboxyl functionalization eliminate the need for sonication before use, or is periodic redispersion required for this ~2.0 wt% water dispersion?
Carboxyl functionalization improves electrostatic stabilization, reducing the rate of sedimentation, but it does not completely prevent settling over extended storage. Periodic gentle agitation, shaking, or mild sonication is recommended before use to re-disperse any aggregates and ensure a homogeneous ~2.0 wt% dispersion. Standard laboratory practice for such dispersions includes verifying homogeneity prior to application.
This carboxyl-functionalized MWCNT aqueous dispersion at ~2.0 wt% loading (model XFM 09) is evaluated for use in conductive coatings, composite preparation, and electrode fabrication, where the pre-dispersed form reduces processing steps but requires careful matching of solvent system and concentration to the target workflow.
Positive
- Pre-dispersed aqueous form: Supplied as a ready-to-use water dispersion at ~2.0 wt%, eliminating the need for in-lab dispersion of dry MWCNT powder and reducing handling of airborne nanoparticles.
- Carboxyl functionalization for compatibility: Carboxyl groups enhance dispersibility in polar solvents and improve interfacial bonding with polymer or ceramic matrices, supporting composite and coating applications.
Trade-offs
- Fixed concentration limits flexibility: Supplied at ~2.0 wt% only; users requiring higher or lower nanotube loading must dilute or concentrate, adding process steps and potential stability risks.
- Aqueous solvent restricts use cases: Water-based dispersion is incompatible with hydrophobic polymer systems or non-polar solvent workflows without additional surfactant or solvent exchange steps.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
